Dr. Jan Pokorný, Dr. Petra Hesslerová

ENKI, o.p.s., Trebon, Czech Republic

Abstract: The biosphere, which has developed over several billions years, has formed the atmosphere with oxygen, which is maintained at a constant proportion; it also affects the climate. Our studies show how the flux of solar energy from the sun to the earth and the distribution of solar energy in plant stands takes place, and are described in case studies. Techniques of both ground measurements and remote sensing used for study of evapotranspiration will be shown. Values of radiative forcing caused by an increase of greenhouse effect (results from the IPCC) will be compared with the direct effect of vegetation in distribution of solar energy and temperature regulation. Impacts of drainage and deforestation on regional climate will be discussed.

Personal Resume (Pokorný): Jan Pokorný graduated in Biology and Chemistry at the Charles University Prague. He worked on photosynthetic processes at the Agriculture University, Prague and later headed the Trebon Section of the Institute of Botany at the Czech Academy of Sciences. He studied ecophysiology of wetland plants, developed methods and instrumentation for oxygen measurements in water and led projects on lake restoration. Among his many commitments, he directs ENKI, o.p.s. (public benefit corporation) for environmental research. Outside Europe he has worked in Africa and Australia, and in 1998 was elected to the Scientific Technology Review Panel of the Ramsar Convention. His c. 200 publications include “Macrophyte Photosynthesis and Aquatic Environment, he is a co-author of the book “Water for Recovery of Climate” (www.waterparadigm.org). With his team he studies the role of water and plants in the regional climate. He lectures regularly on Ecophysiology of Plants and Management of Water Quality at Charles University Prague, University of Applied Sciences in Turku (Finland) and UNESCO - IHE Delft (Netherland).

Personal Resume (Hesslerová): Petra Hesslerová graduated in Physical Geography and Geoecology at the Charles University, Prague, where she also received her PhD in 2008. She currently works for the ENKI public benefit corporation. She lectured 4 years at the Czech University of Life Sciences, Prague. Her specialisations are geography, remote sensing and landscape ecology. She coauthored and has led a number of publications including: "The synergy of solar radiation, plant biomass, and humidity as an indicator of ecological functions of the landscape" Integr. Env. Assessm. Managem. (2010) and "Daily dynamics of radiation surface temperature of different land cover types in a temperate cultural landscape: consequences for the local climate" (Ecological Engineering 2013).